Maintains different pressure levels in two kegs - dispense one keg at 5 PSI and force carbonate another at 30 PSI at the same time. Contains a 0-2000 PSI cylinder gauge, two 0-60 PSI keg gauges, two check valves, two safety relief valves, and a reusable nylon cylinder washer. Gas outlets are 1/4" MFL, which fit our tubing kits (KX03-KX04) and counter pressure bottle filler.